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Techno-economic evaluation of strategies based on two steps organosolv pretreatment and enzymatic hydrolysis of sugarcane bagasse for ethanol production

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  • Mesa, Leyanis
  • López, Nancy
  • Cara, Cristóbal
  • Castro, Eulogio
  • González, Erenio
  • Mussatto, Solange I.

Abstract

Several strategies based on a two steps organosolv pretreatment followed by enzymatic hydrolysis of sugarcane bagasse (SCB) were evaluated with the objective of selecting operational conditions suitable to promote an efficient and low cost production of ethanol. Initially, the influence of six variables used for the organosolv pretreatment was studied. The variables included the time of the first organosolv pretreatment step, the use of 45% ethanol as pulping solution, solid-to-liquid ratio of the ethanol solution used during the first pretreatment step, time of second organosolv pretreatment, concentration of ethanol and concentration of NaOH solution used in the second pretreatment step. Further assays of enzymatic hydrolysis were carried out to promote additional reduction in the costs of the process and improve the results of cellulose conversion to glucose. Eliminating the milling step of the pretreated SCB, using a commercial tensoactive (composed of esters and several surfactants), and recycling 50% of the slurry obtained during the second step of organosolv pretreatment as reaction medium proved to be feasible for use during the enzymatic hydrolysis. Fermentation of the glucose medium produced under the selected pretreatment conditions to ethanol by Saccharomyces cerevisiae occurred with 81% efficiency and a cost of 102.88 $/hL of ethanol.

Suggested Citation

  • Mesa, Leyanis & López, Nancy & Cara, Cristóbal & Castro, Eulogio & González, Erenio & Mussatto, Solange I., 2016. "Techno-economic evaluation of strategies based on two steps organosolv pretreatment and enzymatic hydrolysis of sugarcane bagasse for ethanol production," Renewable Energy, Elsevier, vol. 86(C), pages 270-279.
    • Handle: RePEc:eee:renene:v:86:y:2016:i:c:p:270-279
    DOI: 10.1016/j.renene.2015.07.105
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    References listed on IDEAS

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    1. Mesa, Leyanis & González, Erenio & Ruiz, Encarnación & Romero, Inmaculada & Cara, Cristóbal & Felissia, Fernando & Castro, Eulogio, 2010. "Preliminary evaluation of organosolv pre-treatment of sugar cane bagasse for glucose production: Application of 23 experimental design," Applied Energy, Elsevier, vol. 87(1), pages 109-114, January.
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    Cited by:

    1. Lü, Fan & Hua, Zhang & Shao, Liming & He, Pinjing, 2018. "Loop bioenergy production and carbon sequestration of polymeric waste by integrating biochemical and thermochemical conversion processes: A conceptual framework and recent advances," Renewable Energy, Elsevier, vol. 124(C), pages 202-211.
    2. Mussatto, Solange I. & Yamakawa, Celina K. & van der Maas, Lucas & Dragone, Giuliano, 2021. "New trends in bioprocesses for lignocellulosic biomass and CO2 utilization," Renewable and Sustainable Energy Reviews, Elsevier, vol. 152(C).
    3. Mesa, Leyanis & Martínez, Yenisleidy & Barrio, Edenny & González, Erenio, 2017. "Desirability function for optimization of Dilute Acid pretreatment of sugarcane straw for ethanol production and preliminary economic analysis based in three fermentation configurations," Applied Energy, Elsevier, vol. 198(C), pages 299-311.
    4. Santos, Catarina I. & Silva, Constança C. & Mussatto, Solange I. & Osseweijer, Patricia & van der Wielen, Luuk A.M. & Posada, John A., 2018. "Integrated 1st and 2nd generation sugarcane bio-refinery for jet fuel production in Brazil: Techno-economic and greenhouse gas emissions assessment," Renewable Energy, Elsevier, vol. 129(PB), pages 733-747.
    5. Mesa, Leyanis & Martínez, Yenisleidy & Celia de Armas, Ana & González, Erenio, 2020. "Ethanol production from sugarcane straw using different configurations of fermentation and techno-economical evaluation of the best schemes," Renewable Energy, Elsevier, vol. 156(C), pages 377-388.
    6. Bechara, Rami & Gomez, Adrien & Saint-Antonin, Valérie & Schweitzer, Jean-Marc & Maréchal, François & Ensinas, Adriano, 2018. "Review of design works for the conversion of sugarcane to first and second-generation ethanol and electricity," Renewable and Sustainable Energy Reviews, Elsevier, vol. 91(C), pages 152-164.
    7. Zhao, Xuebing & Liu, Dehua, 2019. "Multi-products co-production improves the economic feasibility of cellulosic ethanol: A case of Formiline pretreatment-based biorefining," Applied Energy, Elsevier, vol. 250(C), pages 229-244.

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